Facebook Inc posted strong growth in its mobile advertising business on Wednesday but rattled investors after saying that it did not plan to boost the frequency of ads shown to users. Shares of the......

Seeking to avoid a repeat of Facebook Inc's much-maligned public debut, Twitter Inc revealed more modest ambitions, saying its initial offering would raise up to $1.6 billion and value the company......

Facebook Inc's new search tool has strong potential to generate revenue for the social networking company, though it is unlikely to challenge Google Inc as the world's dominant search engine, Wall......